Home / 79,138.14-118,707.18-26,547.45

Finding the Fourth Proportional to 79,138.14, 118,707.18 and 26,547.45

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Solution

The fourth proportional to 79,138.14, 118,707.18 and 26,547.45 is: 39,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,138.14 : 118,707.18 = 26,547.45 : x
  2. Step 2: Convert to fraction form
    79,138.14/118,707.18 = 26,547.45/x
  3. Step 3: Cross multiply
    79,138.14x = 118,707.18 × 26,547.45
  4. Step 4: Simplify right side
    79,138.14x = 3,151,372,925.69
  5. Step 5: Solve for x
    x = 3,151,372,925.69/79,138.14
  6. Step 6: Final answer
    x = 39,821.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.